Error while executing query for custom object Work Order

I am executing the query for my custom object created in SFDC. but i am getting the following error:

{'[{"message":"\nSELECT FS_Account_Name__c from FS_Work_Order__c\ERROR at Row:1:Column:34\nsObject type 'FS_Work_Order__c' is not supported. If you are attempting to use a custom object, be sure to append the '__c' after the entity name. Please reference your W开发者_如何学运维SDL or the describe call for the appropriate names.","errorCode":"INVALID_TYPE"}]'} Thoough have written the correct table name as given while i created the Custom object. PLease help.

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First thing to try: does it work properly when run as the system administrator profile? If so then it's certainly a permissions issue. Things to checl

• The object is deployed (Setup > Create > Objects > Edit > Deployment Status)
• The profile has permission to query the object.

If not, does that same query work from inside the developer console? If so I can't think of what it might be, except connecting to production instead of a sandbox or vice versa.